1. Division of Cancer Statistics Integration Center for Cancer Control and Information Services National Cancer Center Tokyo Japan
2. Department of Endocrinology and Diabetes Saitama Medical University Saitama Japan
3. Epidemiology and Prevention Group Center for Public Health Sciences National Cancer Center Tokyo Japan
4. Fukushima Medical Center for Children and Women Fukushima Medical University Fukushima Japan
5. Department of Public Health Graduate School of Medicine The University of Tokyo Tokyo Japan
6. Department of Basic Allied Medicine School of Health Science Gunma University Maebashi Japan